Front bumper for an automobile



FIG. 1 is a front right perspective view of a front bumper for an automobile of my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan thereof; and,

FIG. 6 is a bottom view thereof. 

The ornamental design for a front bumper for an automobile, as shown and described. 